Window construction



March 1949- E.- H. EISEMANN. 2,463,858

WINDOW CONSTRUCTION p 2 'She ets-Sheet 1 Filed Nov. 4, 1944 26 FICii- .IINVENTORK ElzwodliEzlsemazzm BY W I I ATTORNEYS.

March 8, 1949.

E. H. EISEMANN WINDOW CONSTRUCTION Filed Nov. 4, 1944 FIG 5- Sheets-Sweet 2 INVENTOR:

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BY w /Q' ATTORNEYS.

Patented Mar. 8, 1949 UNITED WINDOW CONSTRUCTION Elwood H. Eisemann, Philadelphia, Pa., assignor to Chew-Bittel 00., Philadelphia, Pa., a corporation of Pennsylvania Application November 4, 1944, Serial No. 561,854

1 Claim. 1

This invention relates to window construction, having removable sashes, with particular reference to an auxiliary window, which may be placed either just outside or just inside an ordinary window; or my improved window construction may be used as an independent structure. It may be fitted either with storm sashes or with screens as is found desirable.

In my window construction the upper sash, instead of sliding in a vertical runway, is seated, that is to say, it occupies a seat and cannot be lowered, although it may be removed entirely from its seat. This upper sash engages the upper rail of the window frame and is thus held at its upper edge, and it is overlapped by the lower sash at the meeting rails, whereby the lower sash when in lower positions holds the upper sash firmly in its seat.

The guideway for the lower sash is not the ordinary sash runway but is formed by tongues (preferably of metal) affixed to the inner sides of the window frame so as to engage central grooves provided at both sides of the lower sash. A peculiarity of my window structure is that these metal tongues although extending nearly to the meeting rails extend up no further so that when the lower sash is raised to its uppermost position it is entirely clear of engagement and is therefore capable of being removed from the window frame, whereupon the upper sash is also free to be removed from its seat. I also provide catches whereby the lower sash may be raised to a greater or less extent and held in such raised position while its grooves are still in practical engagement with the tongues at the sides of the window frame, and thus held in open position.

In the accompanying drawings:

Fig. 1 is a view in elevation of a window construction embodyin the present invention, with the right-hand side of the lower sash and a fragmentary portion of the casing structure in section to better illustrate otherwise hidden details.

Fig. 2 is a section taken approximately as indicated by the angled-arrows II-II in Fig. 1; and,

Fig. 3 is a similar section on the plane HIIII of Fig. 1.

Fig. 4 is an enlarged scale sectional view taken as indicated by the angled-arrows IVIV in Fig. 1.

Fig. 5 is a broken fragmentary elevation of the left hand side portion of the window casing with the sash removed.

Fig, 6 is a fragmentary similar scale elevation of the lower left hand side portion of the window with lower sash partially raised.

Fig. 7 is a vertical section of the window casin with the sash removed; said section being substantially a View taken as looking from the right hand towards the left hand of Fig. 5.

Fig. 8 is a section similar to the preceding figure with the sash included and the lower one in closed position.

Fig. 9 is a broken side View of the upper sash.

Fig 10 is a similar side view of the lower sash.

Fig. 11 is a sectional view with the lower sash in partially raised position; and,

Fig. 12 is a perspective view of a catch device hereinafter more fully described.

In describing the form of this invention shown in the accompanying drawings, specific terms will be employed for the sake of clarity, but it is to be understood each such term is intended to embrace all equivalents which perform the same function for an analogous purpose.

Referring more in detail to the drawings, the improved window construction of my invention comprises a frame comprehensively designated I3, said frame being formed with a moulding I4 about the inner side members I5 and across the top member I6 to define a seat for the upper sash H. The upper sash side and top members I8, I9 are formed with associated tongues 20, 2I respectively; the former 20 of which engage the frame side member moulding parts I4, whereas the latter 2| is designed to enter a complementally-sectioned groove 22, provided for its reception in the underside of the frame top member I6, as clearly shown in Fig. 8, more particularly.

In order to support the upper sash I! in position, against descent, the side members l5 of the window frame I3 are fitted with stop beads 23, of a vertical dimension such that, When the sash tongue 2| is entered into the frame groove 22, and said sash I1 is pushed upwardly against the frame moulding I4, the lower member or rail 24 of the sash I'I will rest on the upper ends of the stop beads 23 at 25 and be snugly seated by the groove 22, moulding I4 and said beads 23, as best understood by an examination of Figs. 7 and 8.

Referring now to the lower sash 26 the same comprises side members and top and bottom rails 21, 28 and 29 respectively; said side members 21 being centrally grooved lengthwise at 30, as best shown in Fig. 4, preferably for snug fitment therein of strip metal medially-channeled liners 3| for slidable coaction with complemental metal tongue or T-section elements 32, preferably made of like metal and opposingly secured to the inner edges of the window-frame side members l5 as by nails 33, in an obvious manner. The liners 3| and tongue elements 32 jointly provide for smooth movement of the sash 26 up and down, while they likewise prevent rattling of said sash, should any warp develop. The vertical tongue elements 32 extend upwardly from the lower member 34 of the window frame is almost up to the meeting rails 24, 28 of respective sash l7, 2'6 but no further. The bottom member 23 of the sash 26 has its lower edge stepped at 35 for engagement on the complementarily-shaped upper edge 36 of the window frame bottom member 34, see Figs. 6 and 8.

To support and hold the lower sash 2t raised to a more or less extent, for purposes of ventilation, with the groove liners 3| and tongue elements 32 in practical engagement, use is made of opposed spring catches 37, one of which is shownin perspective by Fig. 12.. Each such catch 31 embodies an angularly-related projection 38 and a lateral tab 39; while it is to be seen said catch is attached by securing means 45 to the inner lateral face of the respectively associated stop bead 23, which latter is provided with a notch 4| for reception of the projection 38 when the sash 'l, 28 are in closed position.

In assembling the sashes H and 26, the upper sash I1 is first seated in the window frame |3 with the tongue 2| engaged in the groove 22 and the side portions 20 abutting the inside of the frame moulding l4, so that the lower side ends of said sash H are supported on the top of the stop beads 23. Attention is here directed to the fact that the inner side edge of the groove 22 is partially beveled or rounded as indicated at 43 in Figs. '7 and 8 to facilitate entry thereinto of the tongue 2| of the upper sash H, whereby said upper sash is held to its seat and development of rattling prevented. The lower sash 26 is next placed in the frame with the lower ends of the groove liners 3| above the upper ends of the tongue elements 32, whereupon, as said sash is guided and lowered to fully closed position, its upper rail 28 will overlap the lower rail 24 of the upper sash I'I, so that said lower sash firmly and securely holds the upper sash to its seat in the frame I3.

Having thus described my invention, I claim:

In a window construction the combination of a frame including a moulding about the inner side members and across the top to define a seat for the upper sash, said upper sash embodying tongues along its sides and across its top, said latter tongue having capacity to enter a complementally sectioned groove in the underside of the frame top, and said groove having its inner side edge rounded to facilitate entry of said upper sash tongue; opposed stop beads on the inner faces of the frame side members, said beads being of a vertical dimension for seating support of the upper sash when the top tongue across the latter is entered into the confronting groove in the frame top; grooved means lengthwise of the lower sash side components for coaction with complemental guide tongues along the frame side members, when said lower sash is inserted in the frame at the top thereof and lowered downwardly along the guide tongues into closed position, and said tongue means extending upwardly of the frame side members only into spaced proximity with the low level of the sashmeeting rails when overlapped; opposed spring catch elements, for supporting the lower sash, said elements being attached to the inner lateral face of the respectively associated stop bead, each said catch element embodying an angularly-related projection and a lateral tab; and opposed notches in the opposed stop beads for reception of the catch projections when both sashes are in closed position.

E W D E.. $E AN REFERENCES C ITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 579,631 Zuppann Mar. 30, 1897 1,246,346 Stephens Nov. 1 3, 19;? 1,695,903 Sawyer Dec. 18, 1,928 1,812,041 Esbjornson June 30, 1931 1,952,018 Madsen lVlar. 20, 1934 2,141,348 De Pietro Dec. 27, 1938 2,303,129 Kurtz Nov. 24, 1942 2,343,200 Muehlman Feb. 29, 19514 

